IMPERIAL COUNTY, CA — the U.S. Geological Survey reported that a preliminary 4.3 magnitude quake occurred near Calipatria Friday morning.

It was reported that a tremor hit the area at 2:55 a.m. The epicenter was situated roughly 7 miles west-northwest of Calipatria, at a depth of 7 miles.

Did you feel it?

If you noticed the earthquake, you can share your experience using the USGS Felt Report form. The agency has received 32 responses on its online form so far, from people indicating they experienced the quake. Light shaking was registered, and people in multiple cities—including Carlsbad, Imperial, Brawley and Calipatria—reported feeling the tremor, according to the USGS DYFI report.

Impact and estimated losses

Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage. Recent earthquakes in this area have caused secondary hazards such as landslides and liquefaction that might have contributed to losses.

Structure information summary
Overall, the population in this region resides in structures that are resistant to earthquake shaking, though vulnerable structures exist. The predominant vulnerable building types are unreinforced brick masonry and reinforced masonry construction.

Historical information
A magnitude 6.6 earthquake 315 km northwest of this event struck San Fernando, California on February 9, 1971 (UTC), with estimated population exposures of 319,000 at intensity VIII and 21,000 at intensity IX or greater, resulting in a reported 65 fatalities.

Earthquakes past week

Over the last week, four quakes of magnitude 2.5 or greater have been detected in the area. The strongest, a 3.7 magnitude quake, jolted close to Borrego Springs prior to this quake.

The four largest earthquakes nearby in the last week:

• 3.7, west of Borrego Springs on July 10
• 3.3, west-northwest of Calipatria on July 11
• 3.0, west-northwest of Calipatria on July 11
• 2.5, northwest of Progreso, B.C. on July 4

Source: The U.S. Geological Survey